Switch



May 30, 1933.

H. E. NORVIEL SWITCH Filed April 13. 1929 2 Sheets-Sheet 1 7/77 g u I 22 15921: 6. Ivory/cl H. E. NORVIEL May 30, 1933.

SWITCH Filed April 13, 1929 2 Sheets-Sheet 2 Patented May 30, 193$ UNITED STATES PATENT OFFICE HARRY E. NORVIEL, OF ANDERSON, INDIANA, ASSIGNOR T DELCO-REMY CORPORA- TION, OF ANDERSON, INDIANA, A CORPORATION OF DELAWARE SWITCH Application filed April 13,

' including the circuit through the ignition coil and a circuit through a terminal to which the registering instrument is connected. This and other objects of the present invention are accomplished by providing a switch case having front and back walls, an actuator slidably supported for linear movement by the front wall of the case, spring blade contacts attached to the back wall of the case and extending toward the front wall and alongside the actuator, a non-conducting blade attached to the actuator and extending laterally therefrom and alongside thereof and adapted to actuate the spring blade members into circuit open and circuit closed relation, said non-conducting blade .being provided with a rivet for bridging some of the contacts and a metallic staple for bridging other of the contacts.

Further objects and advantages of the resent invention will be apparent from the ollowing description, reference being had to the accompanying drawings, wherein a preferred form of embodiment of the present invention is clearly shown.

In the drawings:

Fig. 1 represents a View in elevation of my improved switch and coil'unit.

Fig. 2 is a rear view thereof substantially as indicated by the arrow 2 of Fig. 1.

Fig. 3 is a front view of the unit substantially as indicated by the arrow 3 of Fig. 1.

Fig. 4 is a longitudinal section substantially as indicated by the line and arrows 4-4 of Fig. 3.

Fig. 5 is a view of the unit in section substantially as indicated by the line and arrows 55 of Fig. 3, certain parts being broken away.

Fig. 6 is a sectional view through the 1929. Serial No. 354,760.

switch mechanism substantially as indicated by the line and arrows 66 of Fig. 5.

Fig. 7 is a view in elevation of the contact elements of the switch, the actuator assembly having been removed.

With particular reference to the drawings, refers to a coil case secured to a sleeve 21 which is projected substantially therebeyond to provide a switch housing and to support a key cylinder frame 22, which has meeting engagement with peripheral tangs 23 of the sleeve 21 securing the parts together as a unit. The case 20 is flanged at 24 to seat a non-conducting member 25 or coil base which in turn provides an annular flange 26 forming a receptacle for the insulator 27 supporting one end of a core 28. Overthe said core is passed an insulating tube 29 about which is successively wound a secondary coil 30, a few turns of insulation 81. and a primary winding 32, then a nonconducting sleeve 83 and finally a laminated magnetic winding 34 which is grounded to the case 20.

The member 25 closes one end of the coil compartment and defines a separating wall between it and the switch compartment as well as forming a substantial support for the coil winding. The remote end of the case 20 is closed by a second non-conducting member which cooperates with the coil base 25 in supporting the core by reason of an annular skirt 41 which embraces the other end of the core 28, the member 40 moldably securing a flanged ring 42 which when assembled with the case 20 is spun over a flanged edge 43 as indicated at 44 in Fig. 4. The non-conducting member 40 and its associated elements form a coil cap, as it may be termed, and in addition to the other appointments moldably secures a high tension terminal 45, a battery terminal 46, a gas gauge terminal 47 and a timer terminal 48.

The high tension terminal is connected with the core 28 of the coil by a pin 49 driven therethrough and into the laminationsof passes through the coil along side of the winding and thence through the coil base 25 where the end is stripped of the insulation for connection with an appropriate contact element, later to be described. In a similar manner the terminal post 47 is connected by a lead 51 also passed along the coil and through the coil base 25 to a second contact element, and the terminal post 48 is connected by a lead 52 with the outside turn of the primary winding 32. The inside turn of the primary and the outside of the secondary are joined together and attached to a lead which is also passed through the coil base 25 for connection with a third contact element.

The coil base 25 moldably secures inserts or tubular headed rivets 54 which support bracket members 55, 56 and 57 for carrying the switch contacts or spring blades 58, 59 and 60 respectively. These brackets or terminal members 55, 56 and 57 are connected with the leads 50, 51 and 53 after passing through the coil base 25 which may be soldered to one of the tubular headed rivets 54.

The frame member 22 earlier referred to, forms a closure for the switch housing defined by the extension of the shell 21 and the coil base 25 enclosing the contact mechanism just described. Aside from this function the member 22 also supports a contact actuator assembly and a key controlled device for operating and securing the same in one of its actuated positions. To provide for this function, the member 22 is formed with a tubular extension providing a housing for a switch actuator comprising a lock barrel 66 and an actuating plug 67. The lock barrel 66 is provided with a spring bolt 68 operable by means of a key 69 for longitudinal movement within the tubular extension 65, the bolt 68 cooperating with the recess 70 and the limit pin 71 defining the amount of movement.

The actuator plug 67 within the tubular extension 65 engages the inner end of the key cylinder 66 and is urged in contact therewith by means of a return spring 72 seated within a recess 73 in the end of the plug 67 and encircling a stud 74 secured pon the coil base 25. Longitudinal movement of the plug 6'7 within the extension 65 is limited by a screw 75 threaded into the member 22 so that a reduced end 76 rides within agroove 77 of the plug 67. To the inner end of the plug 67 is secured a movable element of the switch device by a bracket 78 and screws 7 9 which support a non-conducting blade 80 carrying a bridging contact composed of a rivet 81 and a U-shaped clip or staple 82.

It will be noted from the illustration that the member 22 provides a crescent shaped chamber or recess to one side of the tubular portion 65, which, when assembled with the remainder of the unit, provides an enclosure or chamber about the contact elements 58, 59 and 60. It will be noted further that when these elements are properly assembled that the said contacts 58, 59 and 60 are grouped in triangular form about the central portion of this crescent chamber. Further, when the movable contact and its actuator assembly is inserted within the switch housing, the bridging contacts 81 and 82 will be in substantial alignment with the same central point of the crescent shaped chamber, or at all events will be positioned at or near the geometric center of the contact members as they are arranged in their triangular formation, all of which is 6X- hibited in Figs. 4, 5 and 6.

lVith the parts thus assembled it is obvious that manipulation of the proper key 69 within the lock barrel cylinder 66 will pormit the spring 72 acting upon the plug 67 to move it with the lock cylinder 66 to the extended position, so that the contact rivet 81 will come into engagement with the inwardly directed arms of the contact elements 58 and 60, and so that the clip member 82 will come into engagement with the contact member 59, closing the electrical circuit through all of the contacts of the device coincidentally. To open the circuits, the lock barrel 66 is merely depressed or pushed inwardly along the tubular extension 65 against the spring '72 which will carry the movable contacts 81 and 82 out of engagement with the spring members 58, 59 and 60 leaving those members separated by the nonconducting blade 80 and opening the electrical circuits therethrough. Thus it is seen that manipulation of the lock barrel 66 coincidentally controls the coil circuit and the circuit of the registering instrument. 2

For strengthening the union or connection between the frame member 22 and the sleeve 21, screws 85 and 86 are driven through the shell 21 into the frame to reduce the strain that would naturally fall upon the lugs 23. For convenience of mounting the unit, the forward end of the tubular extension 65 is provided with flanged ears 8? and 88 which may be apertured to receive bolts or other clamping devices for mounting the unit upon a partof the vehicle structure.

lVhile the form of embodiment of the present invention herein disclosed, constitutes a preferred form, it is to be under stood that other forms might be adopted. all coming within the scope of the claims which follow.

hatis claimed is as follows:

1. A switch comprising in combination, a switch case, an actuator slidably supported for linear movement by a front wall of the case, spring blade contacts attached to the back wall of the case and extending toward the front wall and alongsidethe actuator,

a nonconducting plate attached to the actuator and extending laterally therefrom and alongside thereof and adapted to actuate the spring blade contacts into circuit open and circuit closed relation, said nonconducting plate provided with a rivet for bridging some of the contacts and a metallic staple for bridging others of the contacts.

2. A switch comprising a case having front and back Walls, a pair of leaf spring contacts insulated from each other and carried by the back wall and so located that their contact surfaces face each other, a third leaf spring contact insulated from the pair of contacts and carried by the back wall and so located that its contact surface faces at right angles to the contact surfaces of the pair of contacts, an actuator extending through the front wall of the case, conducting means moved by the actuator into and out of engagement with all three leaf spring contacts.

3. A switch comprising a case having front and back walls, a pair of U-shaped leaf spring contacts insulated from each other and each having one branch attached to the back wall and so located that the flat sides of their free branches face each other, a third U-shaped leaf spring contact insulated from the pair of contacts and having one branch attached to the back wall and so located that the flat side of its free branch faces at right angles to said flat surfaces of the pair of contacts, an actuator extending through the front wall of the case, conducting means moved by the actuator into and out of engagement with all three leaf spring contacts.

4;. A switch comprising a case having front and back walls, a pair of U-shaped leaf spring contacts insulated from each other each having one branch attached to the back wall and so located that the flat sides of their free branches face each other, a third U-shaped leaf spring contact insulated from the pair of contacts and having one branch attached to the back wall and so located that the flat side of its free branch faces at right angles to said fiat surfaces of the pair of contacts, an actuator extending through the front wall of the case, a non-conducting plate attached to the actuator and movable between the pair of contacts, a movable contact fastened to the plate and extending through the plate and having its ends engageable with the pair of contacts, and a second movable contact connected with the first movable contact and movable by the actuator into and out of engagement with the third leaf spring contact.

In testimony whereof I hereto afiix my signature.

HARRY E. NORVIEL. 

